lsxTAlemy

iTrader: (2)

hey guys i have c6 ls2 a6. i swapped to tsp 1 7/8 with off road 3'' x pipe. but i have a rough idle kinda sounds like its camming when i give it throttle it goes away. i swapped the headers and swapped out the plugs after in case i cracked any. also did some wires.

i had hard time taking off one o2 could this be the problem the?

when holding the speed the mpg jumps up and down? this is what gives me the impression its an o2.

trans feels like its shifting harder also....

lsxTAlemy

iTrader: (2)

need this thing fixed asap anyone got any info i don't want to be buying and guess.

audacious nick

You sure all of your plug wires are properly connected and undamaged? Checked that nothing was left unplugged?

Larry

iTrader: (4)

I think your idle mixture is too lean. Might need to tweak the VE table. Might try running open loop.

jocko

You probably have a bad o2 sensor,if you have a scanner check live data,if you don't i have a scanner.

CAMSTER

iTrader: (10)

If you touched the o2 sensors with your fingers or washed them they are done.
Else you must turn off rear o2 sensors after header install.

Did you get new spark plugs.... hope it helps.